685107558643200 has 4320 divisors, whose sum is σ = 3068653212624384. Its totient is φ = 131639574528000.

The previous prime is 685107558643171. The next prime is 685107558643247. The reversal of 685107558643200 is 2346855701586.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 431 ways as a sum of consecutive naturals, for example, 718895653924 + ... + 718895654876.

Almost surely, 2^{685107558643200} is an apocalyptic number.

685107558643200 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 685107558643200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1534326606312192).

685107558643200 is an abundant number, since it is smaller than the sum of its proper divisors (2383545653981184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

685107558643200 is a wasteful number, since it uses less digits than its factorization.

685107558643200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098 (or 1035 counting only the distinct ones).

The product of its (nonzero) digits is 48384000, while the sum is 60.

The spelling of 685107558643200 in words is "six hundred eighty-five trillion, one hundred seven billion, five hundred fifty-eight million, six hundred forty-three thousand, two hundred".